The proposed research is designed to adapt and test an evidence-based drug abuse prevention approach for use in youth courts among first-time, non-violent, adolescent offenders. The ultimate goal is to reduce the adverse health, legal, and social consequences of youth drug abuse, violence, and delinquency. Planned project activities include conducting: 1) key informant interviews of youth court directors regarding logistical and intervention features of effective youth court programming; and, 2) a randomized controlled efficacy trial of an adapted version of Life Skills Training, an evidence-based drug and violence prevention program. It is anticipated that the findings will provide critical information on implementing evidence-based prevention programs for new populations and settings and will support preparations for a large-scale effectiveness trial in youth peer courts.